1. Department of Physics, Faculty of Arts and Sciences, Ondokuz Mayıs University, 55139 Samsun, Turkey
2. Yeşilyurt Demir Çelik Vocational School, Ondokuz Mayıs University, 55300 Samsun, Turkey
3. Department of Chemistry, Faculty of Arts and Sciences, Ondokuz Mayıs University, 55139 Samsun, Turkey